Improvement in sled-propellers



G. F. SHAVER. SLED-PROPELLER Patented June 26,1877.

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momvs N. PETERS, FHOTO-UTHOG'RAFHER. WASHINGTON. D. C.

UNITED STATES PA QEELOEO GEORGE F. SHAVER, OF MOORHEADVILLE,PENNSYLVANIA.

IMPROVEMENT lN SLED-PROPELLERS.

Specification forming part of Letters Patent No. 192,46 1 dated June 26,1877'; application filed March 3, 1877.

To all whom it may concern:

Be it known that I, GEORGE -1 SHAVER, of Moorheadville, Erie county,Pennsylvania, have invented an Improvement in Sled-Propellers, of whichthe following is a specificatiOn:

Figure 1 of the drawing is a; perspective view, and Fig. 2 a plan view,partly in section.

The invention will first be described in connection with the drawing,and then pointed out in the claim.

A A are two bars, connected, by a crossbar, 0, with front of sled, andat the upper end by a cross-bar, D. The ends of the latter are extendedto form pivots, on which the propolling-bars B and theirrigidly-attached handles B are journaled.

a It will thus be seen that it the handles are worked through the radiusof the upper third of the stroke, great speed can be obtained on ice,where there is little resistance, while it the levers are worked at anobtuse angle, or in the radius of the lower'third of the stroke,sufficient power is obtained to travel ona level or uphill, whereconsiderable resistance is to be overcome.

Having described all that is necessary to a full understanding of myinvention, what I claim as new is- A sled whose propellers B and theirrigidlyattached handles B are journaled on extension-end pivots of thecross-bar D, as and for the purpose specified.

G. F. SHAVER. Witnesses:

E. M. CAMP,

S. S. HAMMOND.

